Attachment for graphophone-machines.



I E. c. WALTER. ATTACHMENT FOR GRAPHOPHONE MACHINES.

APPLICATION FILED JUNE 5.1913. H 1 225 530 Patented May 8, 1914.

3 SHEETS-SHEET 1 INVENTOR idwdrdfibiflzlkr W ATTORNEY/T,

ITNESSES:

E. c. WALTER, ATTACHMENT FOR GRAPHOPHONE MACHINES.

APPLICATION FILED JUNE 511913- Patented May 8, 1917.

3 gHEETS-SHEET 2.

' ATONY E. C. WALTER.

ATTACHMENT FOR GRAPHOPHONE MACHINES.

. INVENTOR V Z a/ward CMklzbr.

Patented May 8, 1917.

3 SHEETS EST 3 EDWARD C. WALTER, OF NEW YORK, N. Y.

ATTACHMENT FOR GRAPI-IOPTIONE-MACHINES.

Specification of Letters Patent.

Patented May 8, 1911?.

Application filed June 5, 1913. Serial No. 771,978.

To all whom it may concern:

Be it known that I, EDWARD C. W-ALTER, a citizen of the Unlted States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Attachments for Graphophone-Machines, of whlch the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to graphophones and more particularly to an arresting or stopping device therefor, and is especiallyadapted for use in connection with the socalled (,rrafonola.

A primary -object of the invention 18 to provide a construction whereby it becomes unnecessary for the operator to give special attention to the machine after it has been started and until another record is. to be played. It is usually necessary, in graphophones, that the operator at the end of the record, stop the machine; whereas, by employing my improved form of automatlc arresting device, the operator is relieved of this necessity.

By reason of the employment of such a device in this style of machine, and by thus effecting an automatic arrestingthereof at the end of the record,the disagreeable bumping sound which is usually heard'is eliminated.

Another object of the invention is to provide a. simple but convenient form of device for reducing to a minin'nnn the necessity of winding the motor spring. A great saving of labor is thus effected because the machine is stopped automatically at the end of a record and no extra revolutions of the disk are thus permitted. 'As a result, the energy of the motor spring is conserved.

Among other features of the invention may be mentioned the fact that it is preferably constructed in the form of an attach ment so that it may be conveniently secured to the machine and. when thus attached thereto. does not interfere with the operating-mechanism thereof in any way until the record has been played completely, whereupon my device' automatically operates to stop the mariiine. Moreover, by the use of my device. the operation of starting or stopping the machine is not changed terminates near its center.

. in any way, since the device operates the starting and stopping lever to stop the machine.

I'Vith these and other objects in view, the invention resides in the structure and in the novel details and arrangement of parts thereof, all as more particularly hereinafter described and set out in the claims.

The accompanying drawings, referred to herein and constituting a part hereof, illustrate a preferred embodiment of the inven tion, the same serving in connection with the description herein to'explain the principles of the invention.

In these drawings:

Figure 1 is a view in plan of a so-called Grafonola, showing the revolving disk thereof and a record, and illustrating also the tone arm, the starting and stopping lever, and my improved automatic stopping device Fig. 2 is a fragmentary view, in plan,

with the revolving disk broken away, and

showing the starting lever standing at the shut-olf position;

'Fig. 3 is a view in sectional elevation of the rear end of the device, the section being taken on the line AB, Fig. 2, and showing the parts in the position they occupy after the tone arm has tripped the mechanism;

Fig. l is a view similar to Fig. 2 and showing the mechanism standing at the on-position.

Fig. 5 is a view similar to Fig. 3, the section in this instance being taken on the line i k-13, Fig. L, and showing the parts in the position they occupy before the tone arm has reached and operated the tripping element of the device;

In these drawings, the numeral 1 designates a disk of ordinary form mounted on a spindle 2 which is rotated by a motor that operates under the control of a lever 3.

As usual, a record is placed on the disk and has on its face a spiral groove which starts at the outer edge of the record and The diameter of the last portion of the groove, in different records, variesconsiderably. As customary,

a needle or pointed wire 5 is placed in the sound-box (3 attached to the outer end of a tone arm 7. This arm is loosely mounted in sitioned in the outer groove of the record, and the disk moves under the action of the motor when the same has been thrown into operation by the control lever 3, the tone arm will be caused to move from the right to the left as the needle traverses the spiral groove.

Unless some provision is made for arresting the machine when the needle reaches the end of the groove, the motor will be permitted to operate unnecessarily and with a consequent bumping sound. The provision of .instrumentalities for arresting the parts at a predetermined point is, therefore, what the present invention contemplates. To this end, the aforementioned tone arm, in moving from right to left, is adapted to engage a buffer element 9 when the arm has reached, say, next to the last groove in the recorddisk, and by means of the parts now to be described and set into motion when the arm abuts against said buffer, the control lever is moved toward the left and the machine is stopped.

As shown in Figs. 1, 2 and l, the control lever 3 is provided with an extension 3 carrying at one end a roller 3" adapted to operate in a slot formed at one portion 10 of an actuating arm 10 pivoted on an axis 12 extending from a base member 11, the latter being fastened to the top 13 of the machine by screws 14. Another portion 10 .of the actuating arm 10 occupies a position between the base 11 and a tripping lever 15 and carries a shoulder-screw 1.6, the head of which projects underneath the base 11 so that the actuating arm 10 may have a horizontal movement but no vertical move ment.

The tripping lever 15 is pivoted on'an axis formed by two pointed screws 17, and includes a lower arm 15 which overlies the rear portion 10 of the actuating arm 10. This arm is provided with a notch 15 in which the'portion 10" of the arm 10 will rest when moved into that position by the movement of the control lever 33 to the right. This arm 15, as shown, extends somewhat beyond the base 11 to form a hook. Secured to the underside ofthe base member 11 is a light springlb which is maintained in oper- 1 ative position by the hooked end of the arm 15, as clearly shown in Fig. \Vhen the spring is flexed by the action of the tone arm engaging the upper portion of the lever 15, the space 15" between the arm 15 and the base member 11 is just sulliciont to allow the arm 10" to move therein.

Pieferably and as shown. the upper member of the tripping-lever 15 is bifurcated to receive and support a spindle 11) carrying a rubber butter 9 at one end and encircled by a spring 2Q. into the opposite end of the spindle is threaded a screw 21 which serves to prevent the spindle from being displaced from lever 15 under the influence of the spring 20 when a binding-screw 22 (threaded into'the upper end of the lever and adapt screw 12is adapted to be tensioned by the movement of said arm 10 when the controlling lever 3 is moved to the right by the operator. The function of this spring is to reshift the actuating-arm 10, in the direction opposite to that in which it has previously been moved, when released from the notch 15 in the lever 15 by the action of tone arm T abutting against the lever and rocking it on its fulcrum 17. The tendency of the spring 18 is toforce the lever 15 toward the tone-arm so that, when said arm is. moved away from the lever and the controllinglever 3 is moved toward the right, the portion 15 of'the tripping lever 15 will drop slightly whereupon the notch 15 will retain the actuating-lever 10 and the upper portion of the tripping-lever will. move slightly toward the right.

To set or adjust this mechanism, described in the foregoing, the operatorprelimina-ry to starting the machine-places the needle 5 in the last groovethat which is nearest the When the screw 22 has been tightened, as

aforementioned, the operator moves the tone-arm 7 toward the right and beyond the record. He may .then start the machine by moving the controlling-lever 3 toward the right whereby the spring 23 is tensioned and this allows the lever 15 to be rocked on its axis by the spring 18 so that its notched portion 15" may retain the actuating-arm 10 and its upper portion be moved slightly toward the right. Now, as soon as the machine is running, the operator places the needle in the outer groove of the record.

and, as the machine continues to operate, it will cause the tone-arm 7 to he moved toward the left until it finally engages the upper portion of the tripping lover and moves it toward the left. causes the lower portion 15 of said lever to release the actuating-arm 10 which, acting under the influence of the spring 23, moves This movement- .spindle 19 back. since it would move toward the right when being adjusted for the larger diameter, though it would not permit the tone-arm to be moved sufficiently toward the left if the adjustment were for a. smaller diameter. I

As will be seen, no different adjustment is required when a record is to be repeated,

that is, used a second time. because any particular adjustment is not destroyed until the aforementioned binding-screw is manipulated.

As will now be manifest, the simple manipulation of the binding-screw (when the needle is positioned in the last groove of the disk) adjusts and. prepares the machine automatically to stop at the end of the record and without any other change in the operation of the machine. In other words, in lieu. of the operator. himself, having to move the controlling-lever toward the left to stop the machine. my improved and automatic stoppingdevice effects this. If, for any reason it is desired or it becomes necessary to stop the machine before the end of a record has been reached, it is only necessary for the operator to touch the buffer 9 and this will then effect a release of the parts and stop the machine in the same manner ,as if said buffer had been operated by the tone-arm '1. an automatic arresting operation.

The construction and appearance of my attachment are such that, when applied to machine. it does not detractat all from its attractiveness, since all that in evidence of the attachment at the front of the machine is the upper portion ofthe trippingarm. The remainder of the structure is beneath the revolving disk. From the foregoing. it will be understood. that the various parts and devices. singly and in their cooperation. contribute to effect a reliable and convenient stopping of the machine at a predetcrmincd point and that. therefore. a structure has been provided which realizes the objects of the invent on and the ad vantages herein set forth. together with other objects and advantages.

The invention in its broader aspects is not limited to the particular construction shown, nor to any particular constructimi by which it has been or may be carried into effect. as many changes may be made in the construcas already described. to effect of the machines tion without departing from the main principles of the invention'and Without sacrificing its chief advantages.

Manifestly, my improvement may be utilized for purposes other than stopping graphophones. In fact, it is well adapted for controlling the operation of analogous or other types of machines'employing motordriven instrnmentalities, a controlling-device therefor, and a movable member acting under the control of the motor-driven in- .stru mentalities.

What I claim is 1. A device of the kind described includ ing in combination, a motor-driven element, a controlling instrumentality therefor, a movable arm cooperating with the motordriven element, a bell-crank-lever tiltable on an approximately horizontal'axis in relatibn to the movable arm and provided with an arm-lockingnotch, and a swinging arm extending from the controlling instrumentality and underlying the bell-crank-lever and moving on an approximately vertical axis; the bell-crank-lever being tiltable on its horizontal axis to effect engagement and disengagement of its notched portion with the swinging arm when the same swings on its vertical axis.

2. A device of the kind described includ ing in combination, a motor-driven element, I

a controlling instrumentality therefor. a movable arm cooperating with the motordriven element, a bell-crank-lever tiltable on an approximately horizontal axis in relation to the movable arm and provided with an arm-locking notch, and swinging arm extending from the controlling instrumentality and underlying the bell-crank-lever and moving on an approximately vertical axis; the bell-cranklever being tiltable on its horizontal axis to effect engagement and disengagement of its notched portion with the swinging arm when the same swings on its vertical axis, and a spring for actuating the swinging arm. i A' device of the kind described, including in combination, a motor-driven disk operating element, a movable arm cooperating therewith, a machine-controlling contrivance comprising an actuating arm. a tripping lever arranged in the path of movement of said traveling-arm and adapted to be operated thereby; a base-member to which said tripping member is operatively connected, said actuating arm being centrallypivoted on said base-member and interposed between said base-member and said tripping member and adapted to be held in one position by said tripping member. and means operating on said actuating arm tomove the same when released from "said tripping- Inember. 7 4f device of the kind described, including in combination, a motor-driven operatelement-operated arm, whereby when the latter engages said tripping-member, said actuating-arm is thereby released and'moved under the action of the aforementioned armoperating means.

5. A device of the kind described, including in combination, a motor-driven operating-element, a movable element-operated arm overlying the same, a machine-controlling contrivance, including a controllinglever, a spring-operated actuating-arm connecting with said controlling-lever and adapted to be moved in one direction by said controllinglever, arm-operatingmeans acting on said actuating-arm to move it in the opposite direction, a base-member underlying said actuating-arm, and a tripping-member overlying said actuating-arm and occupying a position in the path of movement of said element-operated arm, whereby when the latter engages said trippingunerhber, said actuating-arm is thereby released and moved underthe action of the aforementioned arm-operating means, said trippingmember carrying an adjustable bufi'er-element adapted to be engaged by said elementoperated arm to'move it and the trippingmember.

6. A device of the kind described, including in combination, a motor-driven disk-operating element, a traveling arm cooperating therewith and movable thereby, and a controlling contrivance therefor comprising a controlling lever, an actuating arm adapted to be moved in one direction by said controlling-lever, arm-operating means acting on said actuating arm to move it in the opposite direction, a stationary base-member underlying said actuating-arm, a bell-crank tripping-lever pivoted to said base-member and overlying said actuating-arm and provided with an angulated and notched end adapted to retain said actuating-arm, and a trip-operating bufi'er-element carried by and adjustable in 'said trip )ing-n1en1ber and adapted to be engaged by said traveling arm.

7. A device of the kind described, including in combination, a motor-driven disk-operating element, a traveling arm cooperating therewith and movable thereby, a controlling contrivance therefor comprising a controlling-lever, an actuating arm adapted to be moved in one direction by said controllinglever, arm-operating means acting on said actuating-arm to move it in the opposite direction, a stationary base-member runderlying said actuating-arm, a bell-crank tripping-lever pivoted to said base-member and overlying said actuating-arm and provided with an angulated and notched end adapted to retain said actuating-arm, a trip-operating buffer-element carried by and adjustable in said tripping-member and adapted to be engaged by said traveling-arm, and means for retaining said buffer-element in any of a plurality of adjustable positions.

8. The combination in a device of the kind described, of a base-member provided with .two projections, a bell-crank lever mounted between said projections, means for holding the lever between the projections, one end of said bell-crank lever overlying and also underlying and movable into engagement with the base-member and having its movement limited thereby, an adjustable shaft and a.set screw on the other end of the lever.

.9. The combinationin a device of the kind described, of a base-member provided with two projections, a bell-crank-lever mounted between said projections, means for holding the lever between the projections, one end of said bell-crank-lever over 95 lying and also underlying and movable into engagement with the base-member and having its movement limited thereby, and a spring interposed between the base and the bell-crank-lever and operable to disengage 00 the lever from the base.

10. The combination in a device of the kind described, of a basemember provided with journals,a bell-crank lever supported there n, one arm of said lever extending under the base-member to limit movement thereof in one direction, and a lever carried by the base-member and extending between another arm of the bell-crank lever and the base-member to prevent movement of the arm in the other direction, said last-mentioned arm being provided with a notch .to allow movement of the arm in one direction when the lever is positioned therein.

11. A device of the kind described, ineluding in combination, a motondriven element, a controlling-instrumentality therefor, a movable arm cooperatingwith said motor-driven element, a bell-crank arm having a 1eSt-Iicte(l movement, an adjustable 12o shaft against which the movable arm abuts, one arm of the lever being provided with a notch, and an arm extending from the controlling-instrumentality and underlying the bell-crank and adapted to be held in one of its operating posit-ions by the notch.

12. The combination in a machine of the kind described, of a starting lever, an eX- tension on said lever pro ided with a" stud,

a base-member, and a compound lever fulmenses crumed on 'said base-member, one end of c member.

13. The combination in a deviceof the kind described, of a swinging arm adapted to occupy a temporary position, a baseinember, a bell-crank lever and an actuating lever, said bell-crank lever being normally held in a fixed relation to said basemember by said base-member and actuating lever and provided with a notch to permit movement of the bell-crank lever when said actuating lever is positioned thereunder, a spring for moving said bell-crank lever to cause the notch to hold the actuating lever against movement until the bell-crank lever is moved by the swinging arm being brought to the temporary position a second spring on said base-member for moving the actuating lever when released from said notch and a lever for moving said actuating lever to a position to be held by the notch.

14. Stop mechanism comprising a swinging arm, a base-member, a bell-crank lever on the base-member and against which the swinging arm abuts to move the same after it has been adjusted to a predetermined position. an actuating lever carried by said basemember and held in one position by said bell-crank lever,, a spring on said basemember formoving the actuating lever upon being released from said bell-crank When said swinging arm abuts thereagainst, a starting lever connected to said actuating lever to move the same to a position whereby the bell-crank lever will hold it, said starting lever being shiftable to normal position when the actuating lever is released from .the bell-crank lever.

15. Stop mechanism including in combina'tlon, a control lover, a compound lever,

one end of which is connected to the control lever, a base-member upon which the com pound lever is fulorumed, a spring on said base-member adapted to be tensioned by movement of the control and compound levers in one direction and operating to shift said levers in the opposite direction, a bellcranlr lever provided with a notch and also fulcrumed on the basekmember; said notch being adapted to be engaged by one end of the compound lever to hold it against the action of the spring therefor, an adjustable shaft connected to the ell-crank lever, and a set screw for holding the shaft in, position, said shaft being actuatable to move the bell-crank lever, whereby the compound lever Will be released from the notch to permit the spring to move the same to position the control lever.

In testimony whereof I ailix my signature in presence of two Witnesses.

EDWARD C. W'ALTER.

l/Vitnesses James MoCRooonN, JOHN J. CANN. 

